yoob is a Java framework for implementing and using esolangs. It was originally intended to be embedded as a Java applet on a web page. When support for Java applets evaporated, it was converted to be started using JNLP.
yoob was first released by Cat's Eye Technologies in 2011. It was released under a public domain dedication. The version of yoob archived here is the revision released on 28 Nov 2018, which is the last update to yoob, includes example Befunge-93 programs written for the Befunge 25th Anniversary Jubilee.
Using the Software
To run yoob you need a Java JRE 1.7 or later installed.